Nidus in a sentence as a noun

Basically, because I left my sinuses all stuffed up, I created a nidus for infection -- ie the perfect environment for bacteria to breed -- so I had a cold for a week, and then I had a bacterial sinusitis for another 2 weeks and finally broke down to take antibiotics.

Nidus definitions

noun

a central point or locus of an infection in an organism; "the focus of infection"

See also: focus

noun

a nest in which spiders or insects deposit their eggs